“If you're a straight person you don't actually have to come out and tell a person that you're straight.”

But if you’re gay, lesbian, bisexual, transgender, transsexual, it’s a different story.

That’s how Mark Smith, executive officer to the University of Sydney Senate and a proudly gay member of staff, summarises why USYD gets involved in Sydney’s Mardi Gras parade each year, and why the university has made a 22-minute video of LGBTI staff and students.